# ACE Engineering College

Size: px
Start display at page:

Transcription

1 ACE Engineering College Ankushapur (V), Ghatkesar (M), R.R.Dist * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * MECHANICS OF FLUIDS & HYDRAULIC MACHINES Branch : Mechanical Year : 2-2 Objective Questions Academic Year What is the correct formula for absolute pressure? a. Pabs = Patm Pgauge b. Pabs = Pvacuum Patm c. Pabs = Pvacuum + Patm d. Pabs = Patm+ Pgauge ANS: D 2. Blood circulation through arteries is a. a laminar flow b. a turbulent flow ANS: A 3. The fluid will rise in capillary when the capillary is placed in fluid, if a. the adhesion force between molecules of fluid and tube is less than the cohesion between liquid molecules b. the adhesion force between molecules of fluid and tube is more than the cohesion between liquid molecules c. the adhesion force between molecules of fluid and tube is equal to the cohesion between liquid molecules d. cannot say ANS:B 4.Newton's law of viscosity states that a. the shear stress applied to the fluid is directly proportional to the velocity gradient (du/dy) b. the shear stress applied to the fluid is inversely proportional to the velocity gradient (du/dy) c. the shear stress applied to the fluid is directly proportional to the specific weight of the fluid d. the shear stress applied to the fluid is inversely proportional to the specific weight of the fluid ANS:A

2 5.The flow of fluid will be laminar when, a. Reynold's number is less than 2000 b. the density of the fluid is low c. both a. and b. d. none of the above ANS:A 6. Which type of fluid flow is shown in below diagram? a. Circular flow b. Rotational flow c. Irrotational flow d. None of the above ANSWER: Irrotational flow 7. The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at the point, is called as a. path line b. streak line c. filament line d. stream line ANS: D

3 8. In which method of describing fluid motion, the observer remains stationary and observes changes in the fluid parameters at a particular point only? a. Lagrangian method b. Eulerian method c. Stationary method d. All of the above ANS :B 9. Which property of the fluid offers resistance to deformation under the action of shear force? a. density b. viscosity c. permeability d. specific gravity ANSWER: viscosity 10. Shear stress in static fluid is a. always zero b. always maximum c. between zero to maximum d. unpredictable ANSWER: always zero 11. Calculate the magnitude of capillary effect in millimeters in a glass tube of 7mm diameter, when immersed in mercury. The temperature of the liquid is 25 and the values of surface tension of mercury at 25 are 0.51 N/m. The angle of contact for mercury is 130. a) 140 b) 280 c) 170 d) 210 Explanation: Capillarity rise or fall h=4*cosθ*σ/ρ*g*d =4*cos130*0.51/13600*9.81*0.007

4 =140 mm. 12. Capillarity fall is reduced if we take the appartus (capillary tube immersed in fluid having acute angle of contact) considerable distance inside the earth( i.e below the earth crust). a) True b) False Explanation: Capillary rise is given by h=4*cosθ*σ/ρ*g*d Inside the earth, g (acceleration due to gravity) decreases. Hence, capillary rise will increase compared to that on the earth s surface. 13. If a fluid of certain surface tension and diameter is used to create a soap bubble and a liquid jet. Which of the two, bubble or liquid jet, will have greater pressure difference on the inside and outside. a) Liquid jet b) Soap bubble c) Both will have same pressure differrence Explanation: For soap bubble, P=8*σ/d For liquid jet, P=2*σ/d Hence, soap bubble will be having more pressure difference bar equals to Pascals. a) 10 5 Pa b) 1.5 x 10 6 Pa c) 100 Pa d) 1000 Pa Explanation: Bar is a metric unit of pressure, but it does not fall under the SI units. One bar is exactly equal to a 100,000 Pascals. This value is taken from the atmospheric pressure on the earth at sea level. 15. The device used to measure the fluid pressure is a) Hygrometer b) Calorimeter c) Manometer d) Thermometer

5 Answer: c Explanation: Manometer is the most preferred measuring device as the pressure is measured by difference in the column heights of the manometer. It is expressed in terms of inches or centimeters of fluid making it easier for the conversion process. 16. What is the pressure in Pascals at a depth of 1m below the water surface? a) Pa b) 980 Pa c) 98 Pa d) 1 Pa Explanation: It s the summation of weights on top of the water surface. In this case, it is the weight of the atmosphere and water above 1m. [Formula: P (depth) = Patm +(density of water*gravitational constant*depth)]. 18. The pressure at any given point of a non-moving fluid is called the a) Gauge Pressure b) Atmospheric Pressure c) Differential Pressure d) Hydrostatic Pressure Answer: d Explanation: Hydrostatic pressure varies with the increase in depth. Hydrostatic pressure is measured from the surface of the fluid because of the increasing weight of the fluid. The fluid exerts a downward force from the surface of water thus making it a non-moving fluid. 19. The device used to measure the surface tension is a) Tensiometer b) Calorimeter c) Manometer d) Thermometer 20. What type of liquids is measured using a manometer? a) Heavy liquids b) Medium Liquids c) Light Liquids d) Heavy and light liquids

6 Answer: c Explanation: Measurement of liquid in a manometer takes place through differential pressures by balancing the weight. Thus, it is easier for the manometer to measure liquids of lesser density than the heavier ones. Example of a light liquid is Water. 21. Which among these devices are the best suited for the measurement of high pressure liquids with high accuracy? a) Dead Weight Gauge b) Vacuum Gauge c) Manganin wire pressure d) Ionization Gauge Answer: c Explanation: Manganin wire is the most suitable measurement device for high pressure liquids. It has a high stability and durability on a long term basis. It also has a high hydrostatic pressure sensitivity and low strain sensitivity. 22. How do we measure the flow rate of liquid? a) Coriolis method b) Dead weight method c) Conveyor method d) Ionization method Explanation: Coriolis concept of measurement of fluid takes place through the rotation with the reference frame. It is an application of the Newton s Law. The device continuously records, regulates and feeds large volume of bulk materials. 23. What is the instrument used for the automatic control scheme during the fluid flow? a) Rota meters b) Pulley plates c) Rotary Piston d) Pilot Static Tube Answer: d Explanation: Pilot static tube is a system that uses an automatic control scheme to detect pressure. It has several holes connected to one side of the device. These outside holes are called as a pressure transducer, which controls the automatic scheme during fluid flow. 24. Define Viscosity? a) Resistance to flow of an object b) Resistance to flow of air c) Resistance to flow of fluid

7 d) Resistance to flow of heat A nswer: c Explanation: Viscosity is developed due to the relative motion between two surfaces of fluids at different velocities. It happens due to the shear stress developed on the surface of the fluid. 25. What is the viscosity of water at 30 o C? a) 80.1 b) c) 801 d) Explanation: A graph is plotted with temperature in the x-axis and dynamic viscosity in the y- axis. With the increase in pressure the viscosity decreases. It corresponds to an informal concept of thickness. 26. Which one of the following is the unit of pressure? a) N b) N/m c) N/m 2 d) N/m 3 Answer: c Explanation: Pressure is defined as the force per unit area acting normal to a surface. The SI unit of force is N and area is m 2. Thus, the unit of pressure will be N = m Which one of the following is the dimension of pressure? a) [MLT 2 ]. b) [MLT -2 ]. c) [ML -1 T 2 ]. d) [ML -1 T -2 ]. Answer: d Explanation: Pressure (p) is defined as the force (F) per unit area (A) acting normal to a surface. Thus, 28. Which one of the following statements is true regarding pressure? a) Pressure is a scalar quantity

8 b) Pressure is a vector quantity c) Pressure is a scalar quantity only when the area is infinitesimally small d) Pressure is a vector quantity only when the area is infinitesimally small Explanation: Pressure is defined as the force per unit area acting normal to a surface. Both force and area are vectors, but the division of one by the other leads to a scalar quantity. 29. A Hydraulic press has a ram of 30 cm diameter and a plunger of of 2 cm diameter. It is used for lifting a weight of 35 kn. Find the force required at the plunger. a) kn b) kn c) kn d) kn Answer: d Explanation: F/a=W/A F=(35000*3.142*.02*.02)/(3.142*0.3*0.3) =155.5 kn. 30. The pressure at a point in the fluid is 4.9 N/cm2. Find height when the fluid under consideration is in oil of specific gravity of a) 5.83 m b) m c) m d) 8.74 m Explanation: Height=p/ρg =48620/850*9.81 =5.83 m. 31. An open tank contains water upto a depth of 350 cm and above it an oil of specific gravity 0.65 for a depth of 2.5 m. Find the pressure intensity at the extreme bottom of the tank. a) N/cm 2 b) N/cm 2 c) 2.51 N/cm 2 Explanation: p= (specific gravity of water* height of water + specific gravity of oil* height of

9 oil) * 9.81 = N/cm The diameters of a small piston and a large piston of a hydraulic jack are 45 mm and 100 mm respectively.force of 0.09 kn applied on smaller in size piston. Find load lifted by piston if smaller in size piston is 40 cm above the large piston. The density of fluid is 850 kg/m3 a) 60 N/cm 2 b) 12 N/cm 2 c) 30 N/cm 2 Explanation: Pressure at bottom of tank =ρgh + F/a =850*9.81* /3.142*0.045*0.045 =60 N/cm If fluid is at rest in a container of a narrow mouth at a certain column height and same fluid is at rest at same column height in a container having broad mouth, will the pressure be different at certain depth from fluid surface. a) Pressure will be same for both. b) Pressure will be more for narrower mouth c) Pressure will be less for narrower mouth Explanation: As per hydrostatic law, the pressure depends only on the height of water column and not its shape. 34. Pressure intensity or force due to pressure gradient for fluid at rest is considered as which kind of force? a) Surface force b) Body force c) Force due to motion Explanation: Pressure force is surface force. 35. Calculate the hydrostatic pressure for water moving with constant velocity at a depth of 5 m from the surface. a) 49 kn/m2 b) 98 kn/m2 c) since fluid is in motion, we cannot analyse

10 Explanation: If fluid is moving with uniform velocity we treat it analytically same as if fluid is at rest p= ρgh. 36. Pressure distribution for fluid at rest takes into consideration pressure due to viscous force. a) True b) False Explanation: Viscous force term in pressure expression for fluid at rest is absent as their is no motion of liquid. 37. Barometer uses the principle of fluid at rest or pressure gradient for its pressure calculation. a) True b) False Explanation: Principle of Barometer is Hydrostatic law. 38. The right limb of a simple U-tube manometer containing mercury is open to the atmosphere while the lift limb is connected to a pipe in which a fluid of specific gravity 0.85 is flowing. The centre of the pipe is 14 cm below the level of mercury in the right limb.evaluate the pressure of fluid flowing in the pipe if the difference of mercury level in the two limbs is 22 cm. a) 2.86 N/cm 2 b) 5.73 N/cm 2 c) 1.43 N/cm 2 Explanation: Pressure at centre of pipe + Pressure at depth 8 cm in left limb = Pressure at depth 22 cm in right limb P = = 2.86 N/cm A single coloumn manometer is connected to a pipe containing a liquid of specific gravity Find the pressure in the pipe if the area of reservoir is 250 times the area of tube for the manometer reading. The difference in mercury level is 40 cm. On the left limb the fluid is upto the height of 20 cm.

11 a) N/cm 2 b) 5.21 N/cm 2 c) 2.60 N/cm 2 Explanation: Pressure = a/a height (density of mercury 9.81-density of fluid 9.81)+ height in right limb density of mercury 9.81 height in left limb density of fluid 9.81 = 5.21 N/cm 2 { Here a/a = 1/ 250}. 40. A Differential manometer is connected at the points A and Bat the centre of two pipes. The pipe A(left limb) contains a liquid of specific gravity = 1.5 while pipe B (right limb)contains a liquid of specific gravity The pressure at A and B are.5 kgf/cm 2 and 1.2 kgf/cm2 respectively. Find the difference in level of mercuru in the differential manometer. A is 2.5m above B and 5 m above the mercury in its own limb. B is 2.5 m above the mercury level in limb A. a) 12.7 cm b) 25.5 cm c) 6.28 cm d) cm Explanation: Total pressure at the datum line in limb A = Total pressure at the datum line in limb B\ 0.5*9.81* *9.81* h*9.81*13600 = 1.2*9.81* (h+2)*9.81*850 After solving, h=12.7 cm. 41. An inverted differential manometer is connected to two pipes A and B which covey water. The fluid in manometer is oil of specific gravity For the manometer readings, find the pressure difference between A and B. Datum in left limb is 40 cm above point A. Point B is 60 cm below datum line. Difference in level of fluid is 20 cm. a) 1471 N/m 2 b) 2943 N/m 2 c) N/m 2 Explanation: Total pressure at the datum line in limb A = Total pressure at the datum line in limb B Pressure difference between A and B = -0.4*9.81* *9.81* *9.81*1000 = 1471 N/m 2.

12 42. In the inverted U-tube Differential manometer, how is the specific gravity of manometric fluid used relative to the fluid flowing in the pipes a) Specific gravity is more than that of fluid flowing in pipes b) Specific gravity is less than that of fluid flowing in pipes c) Specific gravity is equal to that of fluid flowing in pipes Explanation: In the inverted U-tube Differential manometer, specific gravity of manometric fluid used is less than relative to the fluid flowing in the pipes as the manonmetric fluid is at the top. 43. Why is large reservoir used in single column manometer? a) In order to enhance the change in level of liquid in reservoir b) In order to negate the effects of change in level due to pressure variation c) In order to reduce the effect due to dynamic pressure variation due to motion Explanation: Single column manometer directly gives the pressure by measuring the height in the other limb and due to large cross sectional area of the reservoir, for any variation in pressure, the change can be neglected. 44. Manometers are the pressure measuring devices which use the principle of dynamic pressure to measure the pressure difference. a) True b) False Explanation: Manometers are the pressure measuring devices which use the principle of pressure due to static fluid (i.e the column height) to measure the pressure difference. 45. The distance moved by liquid will be more in which type of manometer? a) Inclined Single coloumn manometer b) Vertical Single coloumn manometer c) Horizontal Single coloumn manometer Explanation: The distance moved by liquid will be more in Inclined Single column manometer due to its inclination.

13 46. Differential manometer gives the pressure reading with respect to atmospheric pressure. a) True b) False Explanation: Differential manometer gives the pressure difference between the fluid flowing in two pipes with respect to each other. 47. Which device is popularly used for measuring difference of low pressure? a) Inverted U-tube Differential Manometer b) U-tube Differential Manometer c) Inclined Single column manometer d) Vertical Single column manometer Explanation: Inverted U-tube Differential Manometer has lighter manometric fluid, Hence it is used for measuring the low pressure difference. 48. Which method is used exclusively in fluid mechanics? a) Lagrangian method b) Eulerian method c) Both Lagrangian and Eulerian methods d) Neither Lagrangian nor Eulerian method Explanation: In Fluid Mechanics, the matter of concern is the general state of motion at various points in the fluid system (as in Eulerian approach) rather than the motion of each particle (as in Lagrangian approach). Hence, the Eulerian method is extensively used in Fluid Mechanics 49. What type of flow can be taken for granted in a pipe of a uniform cross-section? a) steady b) unsteady c) uniform d) non-uniform Answer: c Explanation: According to the continuity equation, ρav =constant, where ρ= density, A= crosssectional area of flow, V = velocity of flow. For a pipe of a uniform cross-section, no matter what the rate of flow is, the velocity of flow inside the pipe will always remain constant. Hence,

### UNIT I FLUID PROPERTIES AND STATICS

SIDDHARTH GROUP OF INSTITUTIONS :: PUTTUR Siddharth Nagar, Narayanavanam Road 517583 QUESTION BANK (DESCRIPTIVE) Subject with Code : Fluid Mechanics (16CE106) Year & Sem: II-B.Tech & I-Sem Course & Branch:

### Chapter 1 INTRODUCTION

Chapter 1 INTRODUCTION 1-1 The Fluid. 1-2 Dimensions. 1-3 Units. 1-4 Fluid Properties. 1 1-1 The Fluid: It is the substance that deforms continuously when subjected to a shear stress. Matter Solid Fluid

### MECHANICAL PROPERTIES OF FLUIDS

CHAPTER-10 MECHANICAL PROPERTIES OF FLUIDS QUESTIONS 1 marks questions 1. What are fluids? 2. How are fluids different from solids? 3. Define thrust of a liquid. 4. Define liquid pressure. 5. Is pressure

### R09. d water surface. Prove that the depth of pressure is equal to p +.

Code No:A109210105 R09 SET-1 B.Tech II Year - I Semester Examinations, December 2011 FLUID MECHANICS (CIVIL ENGINEERING) Time: 3 hours Max. Marks: 75 Answer any five questions All questions carry equal

### FE Fluids Review March 23, 2012 Steve Burian (Civil & Environmental Engineering)

Topic: Fluid Properties 1. If 6 m 3 of oil weighs 47 kn, calculate its specific weight, density, and specific gravity. 2. 10.0 L of an incompressible liquid exert a force of 20 N at the earth s surface.

CE 6303 MECHANICS OF FLUIDS L T P C QUESTION BANK 3 0 0 3 UNIT I FLUID PROPERTIES AND FLUID STATICS PART - A 1. Define fluid and fluid mechanics. 2. Define real and ideal fluids. 3. Define mass density

### MECHANICAL PROPERTIES OF FLUIDS:

Important Definitions: MECHANICAL PROPERTIES OF FLUIDS: Fluid: A substance that can flow is called Fluid Both liquids and gases are fluids Pressure: The normal force acting per unit area of a surface is

### Chapter 10 - Mechanical Properties of Fluids. The blood pressure in humans is greater at the feet than at the brain

Question 10.1: Explain why The blood pressure in humans is greater at the feet than at the brain Atmospheric pressure at a height of about 6 km decreases to nearly half of its value at the sea level, though

### CE MECHANICS OF FLUIDS

CE60 - MECHANICS OF FLUIDS (FOR III SEMESTER) UNIT II FLUID STATICS & KINEMATICS PREPARED BY R.SURYA, M.E Assistant Professor DEPARTMENT OF CIVIL ENGINEERING DEPARTMENT OF CIVIL ENGINEERING SRI VIDYA COLLEGE

### Fluid Mechanics. du dy

FLUID MECHANICS Technical English - I 1 th week Fluid Mechanics FLUID STATICS FLUID DYNAMICS Fluid Statics or Hydrostatics is the study of fluids at rest. The main equation required for this is Newton's

### MULTIPLE-CHOICE PROBLEMS:(Two marks per answer) (Circle the Letter Beside the Most Correct Answer in the Questions Below.)

MULTIPLE-CHOICE PROLEMS:(Two marks per answer) (Circle the Letter eside the Most Correct Answer in the Questions elow.) 1. The absolute viscosity µ of a fluid is primarily a function of: a. Density. b.

### ME3560 Tentative Schedule Spring 2019

ME3560 Tentative Schedule Spring 2019 Week Number Date Lecture Topics Covered Prior to Lecture Read Section Assignment Prep Problems for Prep Probs. Must be Solved by 1 Monday 1/7/2019 1 Introduction to

### TOPICS. Density. Pressure. Variation of Pressure with Depth. Pressure Measurements. Buoyant Forces-Archimedes Principle

Lecture 6 Fluids TOPICS Density Pressure Variation of Pressure with Depth Pressure Measurements Buoyant Forces-Archimedes Principle Surface Tension ( External source ) Viscosity ( External source ) Equation

### 10 - FLUID MECHANICS Page 1

0 - FLUID MECHANICS Page Introduction Fluid is a matter in a state which can flow. Liquids, gases, molten metal and tar are examples of fluids. Fluid mechanics is studied in two parts: ( i ) Fluid statics

### CH.1 Overview of Fluid Mechanics/22 MARKS. 1.1 Fluid Fundamentals.

Content : 1.1 Fluid Fundamentals. 08 Marks Classification of Fluid, Properties of fluids like Specific Weight, Specific gravity, Surface tension, Capillarity, Viscosity. Specification of hydraulic oil

### ME3560 Tentative Schedule Fall 2018

ME3560 Tentative Schedule Fall 2018 Week Number 1 Wednesday 8/29/2018 1 Date Lecture Topics Covered Introduction to course, syllabus and class policies. Math Review. Differentiation. Prior to Lecture Read

### Chapter 14. Lecture 1 Fluid Mechanics. Dr. Armen Kocharian

Chapter 14 Lecture 1 Fluid Mechanics Dr. Armen Kocharian States of Matter Solid Has a definite volume and shape Liquid Has a definite volume but not a definite shape Gas unconfined Has neither a definite

### Fluid Mechanics Introduction

Fluid Mechanics Introduction Fluid mechanics study the fluid under all conditions of rest and motion. Its approach is analytical, mathematical, and empirical (experimental and observation). Fluid can be

### Applications of Hydrostatics

Applications of Hydrostatics Pressure measurement with hydrostatics Mercury Barometer - This is a device used to measure the local atmospheric pressure, p a. As seen in the sketch, it is formed by inverting

### Lesson 6 Review of fundamentals: Fluid flow

Lesson 6 Review of fundamentals: Fluid flow The specific objective of this lesson is to conduct a brief review of the fundamentals of fluid flow and present: A general equation for conservation of mass

### Chapter -5(Section-1) Friction in Solids and Liquids

Chapter -5(Section-1) Friction in Solids and Liquids Que 1: Define friction. What are its causes? Ans : Friction:- When two bodies are in contact with each other and if one body is made to move then the

### INSTITUTE OF AERONAUTICAL ENGINEERING Dundigal, Hyderabad AERONAUTICAL ENGINEERING QUESTION BANK : AERONAUTICAL ENGINEERING.

Course Name Course Code Class Branch INSTITUTE OF AERONAUTICAL ENGINEERING Dundigal, Hyderabad - 00 0 AERONAUTICAL ENGINEERING : Mechanics of Fluids : A00 : II-I- B. Tech Year : 0 0 Course Coordinator

### AMME2261: Fluid Mechanics 1 Course Notes

Module 1 Introduction and Fluid Properties Introduction Matter can be one of two states: solid or fluid. A fluid is a substance that deforms continuously under the application of a shear stress, no matter

### MULTIPLE-CHOICE PROBLEMS :(Two marks per answer) (Circle the Letter Beside the Most Correct Answer in the Questions Below.)

Test Midterm 1 F2013 MULTIPLE-CHOICE PROBLEMS :(Two marks per answer) (Circle the Letter Beside the Most Correct nswer in the Questions Below.) 1. The absolute viscosity µ of a fluid is primarily a function

### S.E. (Mech.) (First Sem.) EXAMINATION, (Common to Mech/Sandwich) FLUID MECHANICS (2008 PATTERN) Time : Three Hours Maximum Marks : 100

Total No. of Questions 12] [Total No. of Printed Pages 8 Seat No. [4262]-113 S.E. (Mech.) (First Sem.) EXAMINATION, 2012 (Common to Mech/Sandwich) FLUID MECHANICS (2008 PATTERN) Time : Three Hours Maximum

### Figure 3: Problem 7. (a) 0.9 m (b) 1.8 m (c) 2.7 m (d) 3.6 m

1. For the manometer shown in figure 1, if the absolute pressure at point A is 1.013 10 5 Pa, the absolute pressure at point B is (ρ water =10 3 kg/m 3, ρ Hg =13.56 10 3 kg/m 3, ρ oil = 800kg/m 3 ): (a)

### Chapter 14. Fluid Mechanics

Chapter 14 Fluid Mechanics States of Matter Solid Has a definite volume and shape Liquid Has a definite volume but not a definite shape Gas unconfined Has neither a definite volume nor shape All of these

### GATE PSU. Chemical Engineering. Fluid Mechanics. For. The Gate Coach 28, Jia Sarai, Near IIT Hauzkhas, New Delhi 16 (+91) ,

For GATE PSU Chemical Engineering Fluid Mechanics GATE Syllabus Fluid statics, Newtonian and non-newtonian fluids, Bernoulli equation, Macroscopic friction factors, energy balance, dimensional analysis,

### Fluid Mechanics. Forces on Fluid Elements. Fluid Elements - Definition:

Fluid Mechanics Chapter 2: Fluid Statics Lecture 3 Forces on Fluid Elements Fluid Elements - Definition: Fluid element can be defined as an infinitesimal region of the fluid continuum in isolation from

### Nicholas J. Giordano. Chapter 10 Fluids

Nicholas J. Giordano www.cengage.com/physics/giordano Chapter 10 Fluids Fluids A fluid may be either a liquid or a gas Some characteristics of a fluid Flows from one place to another Shape varies according

### PROPERTIES OF FLUIDS

Unit - I Chapter - PROPERTIES OF FLUIDS Solutions of Examples for Practice Example.9 : Given data : u = y y, = 8 Poise = 0.8 Pa-s To find : Shear stress. Step - : Calculate the shear stress at various

### Experiment- To determine the coefficient of impact for vanes. Experiment To determine the coefficient of discharge of an orifice meter.

SUBJECT: FLUID MECHANICS VIVA QUESTIONS (M.E 4 th SEM) Experiment- To determine the coefficient of impact for vanes. Q1. Explain impulse momentum principal. Ans1. Momentum equation is based on Newton s

### V/ t = 0 p/ t = 0 ρ/ t = 0. V/ s = 0 p/ s = 0 ρ/ s = 0

UNIT III FLOW THROUGH PIPES 1. List the types of fluid flow. Steady and unsteady flow Uniform and non-uniform flow Laminar and Turbulent flow Compressible and incompressible flow Rotational and ir-rotational

### ENGINEERING FLUID MECHANICS. CHAPTER 1 Properties of Fluids

CHAPTER 1 Properties of Fluids ENGINEERING FLUID MECHANICS 1.1 Introduction 1.2 Development of Fluid Mechanics 1.3 Units of Measurement (SI units) 1.4 Mass, Density, Specific Weight, Specific Volume, Specific

### CE MECHANICS OF FLUIDS UNIT I

CE 6303- MECHANICS OF FLUIDS UNIT I 1. Define specific volume of a fluid and write its unit [N/D-14][M/J-11] Volume per unit mass of a fluid is called specific volume. Unit: m3 / kg. 2. Name the devices

### The general rules of statics (as applied in solid mechanics) apply to fluids at rest. From earlier we know that:

ELEMENTARY HYDRAULICS National Certificate in Technology (Civil Engineering) Chapter 2 Pressure This section will study the forces acting on or generated by fluids at rest. Objectives Introduce the concept

### Fluid Mechanics. If deformation is small, the stress in a body is proportional to the corresponding

Fluid Mechanics HOOKE'S LAW If deformation is small, the stress in a body is proportional to the corresponding strain. In the elasticity limit stress and strain Stress/strain = Const. = Modulus of elasticity.

### Chapter 9: Solids and Fluids

Chapter 9: Solids and Fluids State of matters: Solid, Liquid, Gas and Plasma. Solids Has definite volume and shape Can be crystalline or amorphous Molecules are held in specific locations by electrical

### Physics 123 Unit #1 Review

Physics 123 Unit #1 Review I. Definitions & Facts Density Specific gravity (= material / water) Pressure Atmosphere, bar, Pascal Barometer Streamline, laminar flow Turbulence Gauge pressure II. Mathematics

### 11.1 Mass Density. Fluids are materials that can flow, and they include both gases and liquids. The mass density of a liquid or gas is an

Chapter 11 Fluids 11.1 Mass Density Fluids are materials that can flow, and they include both gases and liquids. The mass density of a liquid or gas is an important factor that determines its behavior

### VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur

VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur 603 203 DEPARTMENT OF CIVIL ENGINEERING QUESTION BANK III SEMESTER CE 8302 FLUID MECHANICS Regulation 2017 Academic Year 2018 19 Prepared by Mrs.

### Fluid Mechanics Discussion. Prepared By: Dr.Khalil M. Al-Astal Eng.Ahmed S. Al-Agha Eng.Ruba M. Awad

Discussion Prepared By: Dr.Khalil M. Al-Astal Eng.Ahmed S. Al-Agha Eng.Ruba M. Awad 2014-2015 Chapter (1) Fluids and their Properties Fluids and their Properties Fluids (Liquids or gases) which a substance

### Barometer Fluid rises until pressure at A, due its weight, equals atmospheric pressure at B. Unit: mm Hg (millimeters that mercury rises)

FLUID MECHANICS The study of the properties of fluids resulting from the action forces. Fluid a liquid, gas, or plasma We will only consider incompressible fluids i.e. liquids Pressure P F A (normal force)

### 1 Fluid Statics. 1.1 Fluid Properties. Fluid

1 Fluid Statics 1.1 Fluid Properties Fluid A fluid is a substance, which deforms when subjected to a force. A fluid can offer no permanent resistance to any force causing change of shape. Fluid flow under

### Fluid Mechanics c) Orificemeter a) Viscous force, Turbulence force, Compressible force a) Turbulence force c) Integration d) The flow is rotational

Fluid Mechanics 1. Which is the cheapest device for measuring flow / discharge rate. a) Venturimeter b) Pitot tube c) Orificemeter d) None of the mentioned 2. Which forces are neglected to obtain Euler

### EXPERIMENT No.1 FLOW MEASUREMENT BY ORIFICEMETER

EXPERIMENT No.1 FLOW MEASUREMENT BY ORIFICEMETER 1.1 AIM: To determine the co-efficient of discharge of the orifice meter 1.2 EQUIPMENTS REQUIRED: Orifice meter test rig, Stopwatch 1.3 PREPARATION 1.3.1

### Petroleum Engineering Dept. Fluid Mechanics Second Stage Dr. Ahmed K. Alshara

Continents Chapter 1. Fluid Mechanics -Properties of fluids -Density, specific gravity, specific volume and Viscosity -Newtonian and non Newtonian fluids -Surface tension Compressibility -Pressure -Cavitations

### Chapter 4 DYNAMICS OF FLUID FLOW

Faculty Of Engineering at Shobra nd Year Civil - 016 Chapter 4 DYNAMICS OF FLUID FLOW 4-1 Types of Energy 4- Euler s Equation 4-3 Bernoulli s Equation 4-4 Total Energy Line (TEL) and Hydraulic Grade Line

### 10.52 Mechanics of Fluids Spring 2006 Problem Set 3

10.52 Mechanics of Fluids Spring 2006 Problem Set 3 Problem 1 Mass transfer studies involving the transport of a solute from a gas to a liquid often involve the use of a laminar jet of liquid. The situation

### Fluid Mechanics Testbank By David Admiraal

Fluid Mechanics Testbank By David Admiraal This testbank was created for an introductory fluid mechanics class. The primary intentions of the testbank are to help students improve their performance on

### Detailed Outline, M E 320 Fluid Flow, Spring Semester 2015

Detailed Outline, M E 320 Fluid Flow, Spring Semester 2015 I. Introduction (Chapters 1 and 2) A. What is Fluid Mechanics? 1. What is a fluid? 2. What is mechanics? B. Classification of Fluid Flows 1. Viscous

### Chapter (6) Energy Equation and Its Applications

Chapter (6) Energy Equation and Its Applications Bernoulli Equation Bernoulli equation is one of the most useful equations in fluid mechanics and hydraulics. And it s a statement of the principle of conservation

### P = 1 3 (σ xx + σ yy + σ zz ) = F A. It is created by the bombardment of the surface by molecules of fluid.

CEE 3310 Thermodynamic Properties, Aug. 27, 2010 11 1.4 Review A fluid is a substance that can not support a shear stress. Liquids differ from gasses in that liquids that do not completely fill a container

### Chapter 14 - Fluids. -Archimedes, On Floating Bodies. David J. Starling Penn State Hazleton PHYS 213. Chapter 14 - Fluids. Objectives (Ch 14)

Any solid lighter than a fluid will, if placed in the fluid, be so far immersed that the weight of the solid will be equal to the weight of the fluid displaced. -Archimedes, On Floating Bodies David J.

### Lecture 8 Equilibrium and Elasticity

Lecture 8 Equilibrium and Elasticity July 19 EQUILIBRIUM AND ELASTICITY CHAPTER 12 Give a sharp blow one end of a stick on the table. Find center of percussion. Baseball bat center of percussion Equilibrium

### 1. Properties of Fluids

Properties of Fluids S K Mondal s Chapter. Properties of Fluids Contents of this chapter. Definition of Fluid. Characteristics of Fluid 3. Ideal and Real Fluids 4. Viscosity 5. Units of Viscosity 6. Kinematic

### 1 FLUIDS AND THEIR PROPERTIES

FLUID MECHANICS CONTENTS CHAPTER DESCRIPTION PAGE NO 1 FLUIDS AND THEIR PROPERTIES PART A NOTES 1.1 Introduction 1.2 Fluids 1.3 Newton s Law of Viscosity 1.4 The Continuum Concept of a Fluid 1.5 Types

### CLASS SCHEDULE 2013 FALL

CLASS SCHEDULE 2013 FALL Class # or Lab # 1 Date Aug 26 2 28 Important Concepts (Section # in Text Reading, Lecture note) Examples/Lab Activities Definition fluid; continuum hypothesis; fluid properties

### Fundamentals of Fluid Mechanics

Sixth Edition Fundamentals of Fluid Mechanics International Student Version BRUCE R. MUNSON DONALD F. YOUNG Department of Aerospace Engineering and Engineering Mechanics THEODORE H. OKIISHI Department

### HYDRAULICS STAFF SELECTION COMMISSION CIVIL ENGINEERING STUDY MATERIAL HYDRAULICS

1 STAFF SELECTION COMMISSION CIVIL ENGINEERING STUDY MATERIAL Syllabus Hydraulics ( Fluid Mechanics ) Fluid properties, hydrostatics, measurements of flow, Bernoulli's theorem and its application, flow

### Steven Burian Civil & Environmental Engineering September 25, 2013

Fundamentals of Engineering (FE) Exam Mechanics Steven Burian Civil & Environmental Engineering September 25, 2013 s and FE Morning ( Mechanics) A. Flow measurement 7% of FE Morning B. properties Session

### Tridib s Physics Tutorials visit

Pressure - If F is the magnitude of this normal force on the piston of area A then the average pressure P av is defined as the normal force acting per unit area. P= F/A, Its dimensions are [ML 1 T 2 ].

### University of Hail Faculty of Engineering DEPARTMENT OF MECHANICAL ENGINEERING. ME Fluid Mechanics Lecture notes. Chapter 1

University of Hail Faculty of Engineering DEPARTMENT OF MECHANICAL ENGINEERING ME 311 - Fluid Mechanics Lecture notes Chapter 1 Introduction and fluid properties Prepared by : Dr. N. Ait Messaoudene Based

### m V DEFINITION OF MASS DENSITY The mass density of a substance is the mass of a substance divided by its volume: SI Unit of Mass Density: kg/m 3

Chapter 11 Fluids 11.1 Mass Density DEFINITION OF MASS DENSITY The mass density of a substance is the mass of a substance divided by its volume: ρ m V SI Unit of Mass Density: kg/m 3 11.1 Mass Density

### Mass of fluid leaving per unit time

5 ENERGY EQUATION OF FLUID MOTION 5.1 Eulerian Approach & Control Volume In order to develop the equations that describe a flow, it is assumed that fluids are subject to certain fundamental laws of physics.

### ː ˠ Ǫː Ǫ. ʿǪ ǪȅԹ ˠ. Save from:

ː ˠ Ǫː Ǫ قسم الهندسة الكيمیاویة Ǫ ߧ Ǫلثانیة ʿǪ ǪȅԹ ˠ د. ˡ Զ ބ, د.صلاح سلمان Save from: http://www.uotechnology.edu.iq/dep-chem-eng/index.htm FLUID FLOW- 2 nd Year CHEMICAL ENG. DEPT. LECTURE-TWO-

### 2.The lines that are tangent to the velocity vectors throughout the flow field are called steady flow lines. True or False A. True B.

CHAPTER 03 1. Write Newton's second law of motion. YOUR ANSWER: F = ma 2.The lines that are tangent to the velocity vectors throughout the flow field are called steady flow lines. True or False 3.Streamwise

### Petroleum Engineering Department Fluid Mechanics Second Stage Assist Prof. Dr. Ahmed K. Alshara

Continents Petroleum Engineering Department Fluid Mechanics Second Stage Assist Prof. Dr. Ahmed K. Alshara Chapter 1. Fluid Mechanics -Properties of fluids -Density, specific gravity, specific volume and

### s and FE X. A. Flow measurement B. properties C. statics D. impulse, and momentum equations E. Pipe and other internal flow 7% of FE Morning Session I

Fundamentals of Engineering (FE) Exam General Section Steven Burian Civil & Environmental Engineering October 26, 2010 s and FE X. A. Flow measurement B. properties C. statics D. impulse, and momentum

### CHAPTER 2 Pressure and Head

FLUID MECHANICS Gaza, Sep. 2012 CHAPTER 2 Pressure and Head Dr. Khalil Mahmoud ALASTAL Objectives of this Chapter: Introduce the concept of pressure. Prove it has a unique value at any particular elevation.

### Fluids. Fluid = Gas or Liquid. Density Pressure in a Fluid Buoyancy and Archimedes Principle Fluids in Motion

Chapter 14 Fluids Fluids Density Pressure in a Fluid Buoyancy and Archimedes Principle Fluids in Motion Fluid = Gas or Liquid MFMcGraw-PHY45 Chap_14Ha-Fluids-Revised 10/13/01 Densities MFMcGraw-PHY45 Chap_14Ha-Fluids-Revised

### Fluids. Fluids in Motion or Fluid Dynamics

Fluids Fluids in Motion or Fluid Dynamics Resources: Serway - Chapter 9: 9.7-9.8 Physics B Lesson 3: Fluid Flow Continuity Physics B Lesson 4: Bernoulli's Equation MIT - 8: Hydrostatics, Archimedes' Principle,

### NPTEL Quiz Hydraulics

Introduction NPTEL Quiz Hydraulics 1. An ideal fluid is a. One which obeys Newton s law of viscosity b. Frictionless and incompressible c. Very viscous d. Frictionless and compressible 2. The unit of kinematic

### Lagrangian description from the perspective of a parcel moving within the flow. Streamline Eulerian, tangent line to instantaneous velocity field.

Chapter 2 Hydrostatics 2.1 Review Eulerian description from the perspective of fixed points within a reference frame. Lagrangian description from the perspective of a parcel moving within the flow. Streamline

### Rate of Flow Quantity of fluid passing through any section (area) per unit time

Kinematics of Fluid Flow Kinematics is the science which deals with study of motion of liquids without considering the forces causing the motion. Rate of Flow Quantity of fluid passing through any section

### Approximate physical properties of selected fluids All properties are given at pressure kn/m 2 and temperature 15 C.

Appendix FLUID MECHANICS Approximate physical properties of selected fluids All properties are given at pressure 101. kn/m and temperature 15 C. Liquids Density (kg/m ) Dynamic viscosity (N s/m ) Surface

### FLOW MEASUREMENT IN PIPES EXPERIMENT

University of Leicester Engineering Department FLOW MEASUREMENT IN PIPES EXPERIMENT Page 1 FORMAL LABORATORY REPORT Name of the experiment: FLOW MEASUREMENT IN PIPES Author: Apollin nana chaazou Partner

### Chapter 3 Fluid Statics

Chapter 3 Fluid Statics 3.1 Pressure Pressure : The ratio of normal force to area at a point. Pressure often varies from point to point. Pressure is a scalar quantity; it has magnitude only It produces

### Chapter 9. Solids and Fluids

Chapter 9 Solids and Fluids States of Matter Solid Liquid Gas Plasma Solids Have definite volume Have definite shape Molecules are held in specific locations By electrical forces Vibrate about equilibrium

### ! =!"#\$% exerted by a fluid (liquid or gas) !"#\$ =!"# FUNDAMENTAL AND MEASURABLE INTENSIVE PROPERTIES PRESSURE, TEMPERATURE AND SPECIFIC VOLUME

FUNDAMENTAL AND MEASURABLE INTENSIVE PROPERTIES PRESSURE, TEMPERATURE AND SPECIFIC VOLUME PRESSURE, P! =!"#\$%!"#! exerted by a fluid (liquid or gas) Thermodynamic importance of pressure One of two independent

### Visualization of flow pattern over or around immersed objects in open channel flow.

EXPERIMENT SEVEN: FLOW VISUALIZATION AND ANALYSIS I OBJECTIVE OF THE EXPERIMENT: Visualization of flow pattern over or around immersed objects in open channel flow. II THEORY AND EQUATION: Open channel:

### Fluid Mechanics-61341

An-Najah National University College of Engineering Fluid Mechanics-61341 Chapter [2] Fluid Statics 1 Fluid Mechanics-2nd Semester 2010- [2] Fluid Statics Fluid Statics Problems Fluid statics refers to

### LECTURE NOTES FLUID MECHANICS (ACE005)

LECTURE NOTES ON FLUID MECHANICS (ACE005) B.Tech IV semester (Autonomous) (2017-18) Dr. G. Venkata Ramana Professor. DEPARTMENT OF CIVIL ENGINEERING INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) DUNDIGAL,

### Chapter 9. Solids and Fluids. States of Matter. Solid. Liquid. Gas

Chapter 9 States of Matter Solids and Fluids Solid Liquid Gas Plasma Solids Have definite volume Have definite shape Molecules are held in specific locations By electrical forces Vibrate about equilibrium

### CHAPTER 13. Liquids FLUIDS FLUIDS. Gases. Density! Bulk modulus! Compressibility. To begin with... some important definitions...

CHAPTER 13 FLUIDS Density! Bulk modulus! Compressibility Pressure in a fluid! Hydraulic lift! Hydrostatic paradox Measurement of pressure! Manometers and barometers Buoyancy and Archimedes Principle! Upthrust!

### Mechanical Engineering Programme of Study

Mechanical Engineering Programme of Study Fluid Mechanics Instructor: Marios M. Fyrillas Email: eng.fm@fit.ac.cy SOLVED EXAMPLES ON VISCOUS FLOW 1. Consider steady, laminar flow between two fixed parallel

### Applied Fluid Mechanics

Applied Fluid Mechanics 1. The Nature of Fluid and the Study of Fluid Mechanics 2. Viscosity of Fluid 3. Pressure Measurement 4. Forces Due to Static Fluid 5. Buoyancy and Stability 6. Flow of Fluid and

### MM303 FLUID MECHANICS I PROBLEM SET 1 (CHAPTER 2) FALL v=by 2 =-6 (1/2) 2 = -3/2 m/s

MM303 FLUID MECHANICS I PROBLEM SET 1 (CHAPTER ) FALL 018 1) For the velocity fields given below, determine: i) Whether the flow field is one-, two-, or three-dimensional, and why. ii) Whether the flow

### FLUID MECHANICES LAB:-I

Force Area Length FLUID MECHANICES LAB:-I Experiment:-0 Measurement of viscosity by Redwood viscometer. Aim: - To determine the kinematic viscosity of a liquid and its variation with temperature. Apparatus:-

### 2 Internal Fluid Flow

Internal Fluid Flow.1 Definitions Fluid Dynamics The study of fluids in motion. Static Pressure The pressure at a given point exerted by the static head of the fluid present directly above that point.

### Fluid Mechanics. The atmosphere is a fluid!

Fluid Mechanics The atmosphere is a fluid! Some definitions A fluid is any substance which can flow Liquids, gases, and plasmas Fluid statics studies fluids in equilibrium Density, pressure, buoyancy Fluid

### Physics 207 Lecture 18

Physics 07, Lecture 8, Nov. 6 MidTerm Mean 58.4 (64.6) Median 58 St. Dev. 6 (9) High 94 Low 9 Nominal curve: (conservative) 80-00 A 6-79 B or A/B 34-6 C or B/C 9-33 marginal 9-8 D Physics 07: Lecture 8,

### Eric G. Paterson. Spring 2005

Eric G. Paterson Department of Mechanical and Nuclear Engineering Pennsylvania State University Spring 2005 Reading and Homework Read Chapter 3. Homework Set #2 has been posted. Due date: Friday 21 January.

### The online of midterm-tests of Fluid Mechanics 1

The online of midterm-tests of Fluid Mechanics 1 1) The information on a can of pop indicates that the can contains 460 ml. The mass of a full can of pop is 3.75 lbm while an empty can weights 80.5 lbf.

### Liquids and solids are essentially incompressible substances and the variation of their density with pressure is usually negligible.

Properties of Fluids Intensive properties are those that are independent of the mass of a system i.e. temperature, pressure and density. Extensive properties are those whose values depend on the size of

### M E 320 Professor John M. Cimbala Lecture 05

M E 320 Professor John M. Cimbala Lecture 05 Today, we will: Continue Chapter 3 Pressure and Fluid Statics Discuss applications of fluid statics (barometers and U-tube manometers) Do some example problems

### CHAPTER 28 PRESSURE IN FLUIDS

CHAPTER 8 PRESSURE IN FLUIDS EXERCISE 18, Page 81 1. A force of 80 N is applied to a piston of a hydraulic system of cross-sectional area 0.010 m. Determine the pressure produced by the piston in the hydraulic

### Universität Duisburg-Essen Fakultät für Ingenieurwissenschaften WS 2012 Maschinenbau, IVG, Thermodynamik Dr. M. A. Siddiqi

1 Universität Duisburg-Essen 3. Semester Fakultät für Ingenieurwissenschaften WS 2012 Maschinenbau, IVG, Thermodynamik Dr. M. A. Siddiqi THERMODYNAMICS LAB (ISE) Pressure Measurement 2 2 Pressure Measurement